/Engine/Source/Runtime/Engine/Classes/Materials/MaterialExpressionStaticBoolParameter.h
class UMaterialExpressionStaticBoolParameter : public [UMaterialExpressionParameter](API\Runtime\Engine\Materials\UMaterialExpressionParameter)
uint32: 1
DefaultValue
uint32: 1
DynamicBranch
Change Parameter from "static bool" to (dynamic) bool type which enables it to be used with dynamic branching